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Aviation System Standards

Safety Alerts

In addition to the Safety Alerts on this page, pilots and NACO Aeronautical Chart Agents may wish to view the most recent information available at:

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Safety Alerts
Affected Product Effective Date Subject and Additional Information
New York Terminal Area and New York Helicopter Route Charts February 11, 2010 Two new VFR Planning Charts will be available to assist pilots navigating through and below the New York Class B airspace area. See the Safety Alert for additional information.
Sectional Raster Aeronautical Charts (SRAC) DVDs October 22, 2009 The 0911 Edition DVDs (East, West, and Alaska) were distributed with the following charts that will expire on October 22, 2009: Albuquerque, Chicago, Chicago TAC, Dawson, Hawaiian Is., Phoenix, Phoenix TAC, Puerto Rico-VI TAC, Salt Lake City and Salt Lake City TAC. All of these files are available free at the following url: http://www.naco.faa.gov/index.asp?xml=SRAC_0911. See the Safety Alert for additional information.
Gulf of Mexico Vertical Flight Reference Chart December 17, 2009 The effective date of the 12th Edition of the IFR Gulf of Mexico Vertical Flight Reference Chart will be extended from October 22, 2009 to December 17, 2009. See the Safety Alert for additional information.
Terminal Procedures Publications and the digital-Terminal Procedures Publication (d-TPP)DVD Beginning October 22, 2009 Instrument Approach charts which have been updated with procedural/criteria revisions will contain a Procedure Amendment Date. See the Safety Alert for additional information.
Digital Obstacle File (DOF) Beginning August 27, 2009 The Above Ground Level Height(AGL HT) will be expanded to 5 digits. See the Safety Alert for additional information.
All VFR Charts Beginning August 27, 2009 Alert Area boundary color will be represented in magenta. This change will be phased-in over the next two years as charts are revised. See the Safety Alert for additional information.
All IFR Enroute Charts July 2, 2009 Alert Area boundary color will be represented in brown. See the Safety Alert for additional information.
VFR World Aeronautical Charts (WAC) December 18, 2008 World Aeronautical Charts will only show obstructions that are 500 ft Above Ground Level (AGL) or taller. See the Charting Notice for additional information.


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